Michael Schumacher and Willi Weber worked together for years
Little is known about the seven-time world champion’s condition after suffering a devastating head injury while skiing with his family in Meribel, France in December 2013.
With his family and friends remaining tight-lipped, Schumacher’s former manager Willi Weber has accused them of withholding information – blasting them from excluding him.
He said: “For some time now, I've been saying that the Schumacher family is not telling the whole truth.
“It's time to pour pure wine for his millions of fans.
“But I'm biting on granite because for a long time my advice is no longer heard.”
The F1 driver was put into a medically-induced coma after the accident
Michael Schumacher and Willi Weber secured several world titles together
Michael Schumacher collected several world titles with Benton and Ferrari between 1994 and 2004 – all while under Mr Weber’s guidance.
But the longtime friend and manager says he has been barred from visiting the sporting legend – adding he believes Schumacher's wife Corinna no longer trusts him.
He said: "I do not know much about Michael's condition, but even though I have worked very successfully with Michael for 30 years, I am denied the visit."
Michael Schumacher in pictures
Thu, February 4, 2016
Seven time F1 World Champion, Michael Schumacher is one of the greatest to have driven a racing car. Schumacher still remains critical after he suffered severe head injuries in a ski accident in 2013.
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Michael Schumacher presents the new Ferrari F310 in 1996
However Weber is still hopeful his old friend will one day recover from his tragic accident.
He said: “When I'm home alone and the phone rings I often feel that it will be Michael saying 'Willi, how's it going?'
“Hope dies last.”
The F1 champion is believed to have hit the right side of his head on a rock after sliding on the snow – and doctors were forced to operate to remove blood clots from his brain.
Weber says he has been barred from visiting the sporting legend
For some time now, I've been saying that the Schumacher family is not telling the whole truth.
Ex-manager Wili Weber
At the time of his accident, Schumacher was worth more than £500million.
But wife Corinna has sold off his private jet and a holiday home they owned in Norway to pay for the costly medical treatments.
After months in hospital, the 47-year-old has since been cared for in his Switzerland home – running up a medical care bill of £115,000 a week to pay fort the 15-strong team of physicians, nurses and medical technologists.
Willi Weber says fans should be told the condition of their icon
The F1 champion is believed to have hit the right side of his head on a rock
Schumacher once described his wife as his “guardian angel” and has been regularly pictured alongside her husband over the 20 years of their marriage.
But Corinna was left heartbroken last month after shocking pictures of the sporting ace, which were covertly snapped by his bedside, were sold to European media last month for nearly £1million.
The star’s furious wife Corinna demanded charges be pressed against the culprit, and prosecutors in Offenburg, Germany, were initially investigating as the pictures are said to violate the racing legend’s “personal range of life”.
But despite prosecutors describing the photographs as a “gross breach” of the family’s trust, the authorities have had to put their investigation on hold.